把多项式(x-y)2-2(x-y)-8分解因式,正确的结果是()A.(x-y+4)(x-y+2)B.(x-y-4)(x-y-2)C.(x-y-4)(x-y+2)D.(x-y+4)(x-y-2)-数学

题目简介

把多项式(x-y)2-2(x-y)-8分解因式,正确的结果是()A.(x-y+4)(x-y+2)B.(x-y-4)(x-y-2)C.(x-y-4)(x-y+2)D.(x-y+4)(x-y-2)-数学

题目详情

把多项式(x-y)2-2(x-y)-8分解因式,正确的结果是(  )
A.(x-y+4)(x-y+2)B.(x-y-4)(x-y-2)C.(x-y-4)(x-y+2)D.(x-y+4)(x-y-2)
题型:单选题难度:中档来源:不详

答案

(x-y)2-2(x-y)-8,
=(x-y-4)(x-y+2).
故选C.

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